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Iqbal A, Alam MT, Khan A, Siddiqui T, Ali A. Inhibition of protein misfolding and aggregation by steroidal quinoxalin-2(1H)-one and their molecular docking studies. Int J Biol Macromol 2024; 269:132020. [PMID: 38704061 DOI: 10.1016/j.ijbiomac.2024.132020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 04/27/2024] [Accepted: 04/29/2024] [Indexed: 05/06/2024]
Abstract
A series of D-ring fused 16-substituted steroidal quinoxalin-2(1H)-one attached to an electron-releasing (ER) or electron-withdrawing (EW) groups via steroidal oxoacetate intermediate were synthesized to investigate their protein aggregation inhibition potential using human lysozyme (HLZ). The influence of the type of substituent at the C-6 positions of the quinoxalin-2(1H)-one ring on the protein aggregation inhibition potential was observed, showing that the EW moiety improved the protein aggregation inhibition potency. Of all the evaluated compounds, NO2-substituted quinoxalin-2(1H)-one derivative 13 was the most active compound and had a maximum protein aggregation inhibition effect. Significant stabilization effects strongly support the binding of the most biologically active steroidal quinoxalin-2(1H)-one with docking studies. The predicted physicochemical and ADME properties lie within a drug-like space which shows no violation of Lipinski's rule of five except compounds 12 and 13. Combined, our results suggest that D-ring fused 16-substituted steroidal quinoxalin-2(1H)-one has the potential to modulate the protein aggregation inhibition effect.
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Affiliation(s)
- Arfeen Iqbal
- Department of Chemistry, Aligarh Muslim University, Aligarh 202 002, UP, India
| | - Md Tauqir Alam
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202 002, UP, India
| | - Asna Khan
- Department of Chemistry, Aligarh Muslim University, Aligarh 202 002, UP, India
| | - Tabassum Siddiqui
- Department of Chemistry, Aligarh Muslim University, Aligarh 202 002, UP, India
| | - Abad Ali
- Department of Chemistry, Aligarh Muslim University, Aligarh 202 002, UP, India.
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2
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Adarsh Krishna TP, Ajeesh Krishna TP, Edachery B, Antony Ceasar S. Guggulsterone - a potent bioactive phytosteroid: synthesis, structural modification, and its improved bioactivities. RSC Med Chem 2024; 15:55-69. [PMID: 38283224 PMCID: PMC10809385 DOI: 10.1039/d3md00432e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 11/01/2023] [Indexed: 01/30/2024] Open
Abstract
Guggulsterone is a phytosteroid derived from the oleo-gum resin of the critically endangered plant Commiphora wightii. This molecule has attracted increasing attention due to its excellent biochemistry potential and the compound has consequently been evaluated in clinical trials. With a low concentration in natural resources but wide medicinal and therapeutic value, chemists have developed several synthetic routes for guggulsterone starting from various steroid precursors. Moreover, numerous studies have attempted to modify its structure to improve the biological properties. Nowadays, green and sustainable chemistry has also attracted more attention for advanced chemical processes and reactions in steroid chemistry. The present review aimed to summarize the literature and provide an update about the improvements in the chemical synthesis and structural modification of guggulsterone from the view of green chemistry. Moreover, this review encompasses the improved activities of structurally modified guggulsterone derivatives. We expect that the information provided here will be useful to researchers working in this field and on this molecule.
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Affiliation(s)
- T P Adarsh Krishna
- R & D Division, Sreedhareeyam Farmherbs India Pvt. Ltd Kerala 686 662 India
| | - T P Ajeesh Krishna
- Division of Plant Molecular Biology and Biotechnology, Department of Bioscience, Rajagiri College of Social Sciences Kochi Kerala 683 104 India
- Division of Phytochemistry and Drug-Design, Department of Bioscience, Rajagiri College of Social Sciences Kochi Kerala 683 104 India
| | - Baldev Edachery
- R & D Division, Sreedhareeyam Farmherbs India Pvt. Ltd Kerala 686 662 India
| | - S Antony Ceasar
- Division of Plant Molecular Biology and Biotechnology, Department of Bioscience, Rajagiri College of Social Sciences Kochi Kerala 683 104 India
- Division of Phytochemistry and Drug-Design, Department of Bioscience, Rajagiri College of Social Sciences Kochi Kerala 683 104 India
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3
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L‐Proline Catalyzed Synthesis of Steroidal Pyridones And Their DFT Studies. ChemistrySelect 2022. [DOI: 10.1002/slct.202202286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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4
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Ali A, Asif M, Rizvi A, Farhan M, Zaman S. Discovery of a novel oxadiazine derivative of glucocorticoids endowed with DNA binding activities and molecular docking studies. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2019. [DOI: 10.1080/16583655.2019.1603575] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Abad Ali
- Steroid Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh, India
- Organometallic Synthesis and Catalysis Group, Chemical Engineering Division, CSIR-National Chemical Laboratory (CSIR-NCL), Pune, India
| | - Mohd Asif
- Steroid Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh, India
| | - Asim Rizvi
- Department of Biochemistry, Aligarh Muslim University, Aligarh, India
| | - Mohd Farhan
- Department of Biochemistry, Aligarh Muslim University, Aligarh, India
| | - Shamsuz Zaman
- Steroid Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh, India
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5
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Karataş S, Çapan İ, Servi S. Synthesis of Indole and Benzimidazole Substituted Novel 16-Arylidene Steroid Derivatives. LETT ORG CHEM 2019. [DOI: 10.2174/1570178616666190305130217] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Novel aza-heterocyclic substituted dehydroepiandrosterone derivatives were synthesized
through a three-step reaction sequence. Some new O-alkylated 4-hydroxybenzaldehydes were synthesized
from the reaction of substituted benzaldehydes with dihalogen compounds which have different
chain lengths. 16-Arylidene steroids were synthesized from the base-catalyzed aldol condensation of
O-alkylated 4-hydroxybenzaldehydes and dehydroepiandrosterone. New indolyl and benzimidazolyl
substituted steroid derivatives as hybrid molecules were obtained from the reaction of 16-arylidene
steroids with indole or benzimidazole.
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Affiliation(s)
- Semra Karataş
- Department of Chemistry, Faculty of Science, Firat University, Elazıg, Turkey
| | - İrfan Çapan
- Department of Polymer Technology, Technical Sciences Vocational College, Gazi University, Ankara, Turkey
| | - Süleyman Servi
- Department of Chemistry, Faculty of Science, Firat University, Elazıg, Turkey
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6
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Ansari A, Ali A, Asif M. Steroidal thiazolidinone derivatives: Design, synthesis and their molecular interaction with human serum albumin. Steroids 2019; 148:99-113. [PMID: 31082411 DOI: 10.1016/j.steroids.2019.02.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 02/15/2019] [Accepted: 02/26/2019] [Indexed: 12/17/2022]
Abstract
A series of steroidal thiazolidinone derivatives have been synthesized through one-pot multicomponent reaction involving steroidal ketone, thiosemicarbazide/methyl-thiosemicarbazide and DMAD in presence of AlCl3 as a Lewis acid catalyst. Among all the synthesized steroidal thiazolidinone derivatives, compound 7-9 (ST 7-9) were investigated for their in vitro molecular interaction with human serum albumin. Intrinsic fluorescence spectroscopy, constant wavelength synchronous fluorescence spectroscopy, circular dichroism and UV-visible absorption techniques have been exploited to characterize the binding phenomena in phosphate buffer solution at pH 7.4. The experimental results indicated that ST 7-9 bind to HSA and the intrinsic fluorescence of HSA was quenched through static quenching mechanism. The binding parameters were calculated and the binding constants obtained were 1.44 × 105 M-1 for ST 7, 0.84 × 105 M-1 for ST 8 and 1.06 × 105 M-1 for ST 9. Circular dichroism analysis confirms that the presence of ST 7-9, altered the secondary structure of HSA due to partial unfolding of the polypeptide chain. Furthermore, hemolytic activity assay demonstrated that the synthesized steroidal thiazolidinone derivatives have good compatibility towards human red blood cells. Finally, molecular docking studies revealed that the steroidal thiazolidinones can bind in the hydrophobic cavity of HSA, by hydrophobic and hydrogen bonding interaction. These results provided valuable information about the binding mechanism of ST 7-9 with HSA and play a pivotal role in the development of steroidal heterocycle inspired compounds.
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Affiliation(s)
- Anam Ansari
- Steroid Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh 202 002, India
| | - Abad Ali
- Steroid Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh 202 002, India; Organometallic Synthesis and Catalysis Group, Chemical Engineering Division, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune 411 008, Maharashtra, India
| | - Mohd Asif
- Steroid Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh 202 002, India
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Ansari A, Ali A, Asif M, Rauf MA, Owais M. Facile one-pot multicomponent synthesis and molecular docking studies of steroidal oxazole/thiazole derivatives with effective antimicrobial, antibiofilm and hemolytic properties. Steroids 2018; 134:22-36. [PMID: 29653115 DOI: 10.1016/j.steroids.2018.04.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 03/17/2018] [Accepted: 04/06/2018] [Indexed: 10/17/2022]
Abstract
A series of steroidal oxazole and thiazole derivatives have been synthesized employing thiosemicarbazide/semicarbazide hydrochloride and ethyl 2-chloroacetoacetate with a simple and facile one-pot multicomponent reaction pathway. The antimicrobial activity of newly synthesized compounds were evaluated against four bacterial strains namely Gram-negative (Escherichia coliand Pseudomonas aeruginosa) and Gram-positive bacteria (Staphylococcus aureus and Listeria monocytogenes) in addition to pathogenic fungi (Candida albicans and Cryptococcus neoformans). Bioactivity assay manifested that most of the compounds exhibited good antimicrobial activity. To provide additional insight into antimicrobial activity, the compounds were also tested for their antibiofilm activity against S. aureus biofilm. Moreover, molecular docking study shows binding of compounds with amino acid residues of DNA gyrase and glucosamine-6-phosphate synthase (promising antimicrobial target) through hydrogen bonding interactions. Hemolytic activity have been also investigated to ascertain the effect of compounds over RBC lysis and results indicate good prospects for biocompatibility. The expedient synthesis of steroidal heterocycles, effective antibacterial and antifungal behavior against various clinically relevant human pathogens, promising biocompatibility offer opportunities for further modification and potential applications as therapeutic agents.
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Affiliation(s)
- Anam Ansari
- Steroid Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh 202 002, India
| | - Abad Ali
- Steroid Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh 202 002, India; Organometallic Synthesis and Catalysis Group, Chemical Engineering Division, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune 411 008, Maharashtra, India
| | - Mohd Asif
- Steroid Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh 202 002, India
| | - Mohd Ahmar Rauf
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
| | - Mohammad Owais
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
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8
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Ansari A, Ali A, Asif M, Shamsuzzaman S. Microwave-assisted MgO NP catalyzed one-pot multicomponent synthesis of polysubstituted steroidal pyridines. NEW J CHEM 2018. [DOI: 10.1039/c7nj03742b] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
MgO NPs were proved to be a highly efficient catalyst for mild and clean conversion of steroids to steroidal heterocycles.
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Affiliation(s)
- Anam Ansari
- Steroid Research Laboratory
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202 002
- India
| | - Abad Ali
- Steroid Research Laboratory
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202 002
- India
| | - Mohd Asif
- Steroid Research Laboratory
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202 002
- India
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9
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Romero-Hernández LL, Merino-Montiel P, Meza-Reyes S, Vega-Baez JL, López Ó, Padrón JM, Montiel-Smith S. Synthesis of unprecedented steroidal spiro heterocycles as potential antiproliferative drugs. Eur J Med Chem 2017; 143:21-32. [PMID: 29172080 DOI: 10.1016/j.ejmech.2017.10.063] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 10/09/2017] [Accepted: 10/22/2017] [Indexed: 01/14/2023]
Abstract
Herein we report the straightforward preparation of novel conformationally-restricted steroids from trans-androsterone and estrone, decorated with spiranic oxazolidin-2-one or 2-aminooxazoline motifs at C-17 as potential antiproliferative agents. Such unprecedented pharmacophores were accessed using an aminomethylalcohol derivative at C-17 as the key intermediate; reaction of such functionality with triphosgene, or conversion into N-substituted thioureas, followed by an intramolecular cyclodesulfurization reaction promoted by yellow HgO, furnished such spirocycles in excellent yields. Title compounds were tested in vitro against a panel of six human tumor cell lines, named A549 (non-small cell lung), HBL-100 (breast), HeLa (cervix), SW1573 (non-small cell lung), T-47D (breast) and WiDr (colon), and the results were compared with steroidal chemotherapeutic agents (abiraterone and galeterone); the A-ring of the steroidal backbone, the nature of the heterocycle and the N-substituents proved to be essential motifs for establishing structure-activity relationships concerning not only the potency but also the selectivity against tumor cell lines. Estrone derivatives, particularly those bearing a spiranic 2-aminooxazoline scaffold were found to be the most active compounds, with GI50 values ranging from the low micromolar to the submicromolar level (0.34-1.5 μM). Noteworthy, the lead compounds showed a remarkable increase in activity against the resistant cancer cell lines (T-47D and WiDr) compared to the anticancer reference drugs (up to 120-fold).
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Affiliation(s)
- Laura L Romero-Hernández
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, 72570 Puebla, Pue., Mexico
| | - Penélope Merino-Montiel
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, 72570 Puebla, Pue., Mexico.
| | - Socorro Meza-Reyes
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, 72570 Puebla, Pue., Mexico
| | - José Luis Vega-Baez
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, 72570 Puebla, Pue., Mexico
| | - Óscar López
- Departamento de Química Orgánica, Facultad de Química, Universidad de Sevilla, Apartado 1203, E-41071 Seville, Spain
| | - José M Padrón
- BioLab, Instituto Universitario de Bio-Orgánica "Antonio González" (IUBO-AG), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Universidad de La Laguna, c/ Astrofísico Francisco Sánchez 2, 38206 La Laguna, Spain
| | - Sara Montiel-Smith
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Ciudad Universitaria, 72570 Puebla, Pue., Mexico.
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10
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Zulkarnain, Khan IM, Ahmad A, Miyan L, Ahmad M, Azizc N. Synthesis of charge transfer complex of chloranilic acid as acceptor with p-nitroaniline as donor: Crystallographic, UV–visible spectrophotometric and antimicrobial studies. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.03.050] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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11
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Ali A, Asif M, Alam P, Jane Alam M, Asif Sherwani M, Hasan Khan R, Ahmad S, Shamsuzzaman. DFT/B3LYP calculations, in vitro cytotoxicity and antioxidant activities of steroidal pyrimidines and their interaction with HSA using molecular docking and multispectroscopic techniques. Bioorg Chem 2017. [DOI: 10.1016/j.bioorg.2017.06.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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12
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Shoeb M, Mobin M, Ali A, Zaman S, Naqvi AH. Graphene-mesoporous anatase TiO2
nanocomposite: A highly efficient and recyclable heterogeneous catalyst for one-pot multicomponent synthesis of benzodiazepine derivatives. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3961] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Mohd Shoeb
- Interdisciplinary Nanotechnology Centre (INC); Aligarh Muslim University; Aligarh 202002 Uttar Pradesh India
| | - Mohammad Mobin
- Department of Applied Chemistry, Z.H. College of Engg. & Tech.; Aligarh Muslim University; Aligarh Uttar Pradesh India
| | - Abad Ali
- Steroid Research Laboratory, Department of Chemistry; Aligarh Muslim University; Aligarh 202002 India
| | - Shamsuz Zaman
- Steroid Research Laboratory, Department of Chemistry; Aligarh Muslim University; Aligarh 202002 India
| | - Alim H. Naqvi
- Interdisciplinary Nanotechnology Centre (INC); Aligarh Muslim University; Aligarh 202002 Uttar Pradesh India
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13
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Lizundia E, Sáenz-Pérez M, Patrocinio D, Aurrekoetxea I, dM Vivanco M, Vilas JL. Nanopatterned polystyrene-b-poly(acrylic acid) surfaces to modulate cell-material interaction. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 75:229-236. [PMID: 28415458 DOI: 10.1016/j.msec.2017.01.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 12/07/2016] [Accepted: 01/31/2017] [Indexed: 02/06/2023]
Abstract
In this work we explore the effect of surface nanoarchitecture of polystyrene (PS) and polystyrene-b-poly(acrylic acid) (PS-b-PAA) diblock copolymer films on cell viability. PS and PS-b-PAA have been nanopatterned at temperatures of 110, 120 and 140°C using nanoporous aluminium oxide membranes (AAO) as a template. Surface architecture strongly depends on the infiltration temperature and the nature of the infiltrated polymer. High patterning temperatures yield hollow fibre shape architecture at the nanoscale level, which substantially modifies the surface hydrophobicity of the resulting materials. Up to date very scarce reports could be found in the literature dealing with the interaction of microstructured/nanostructured polymeric surfaces with cancer cells. Therefore, MCF-7 breast cancer cells have been selected as a model to conduct cell viability assays. The findings reveal that the fine-tuning of the surface nanoarchitecture contributes to the modification of its biocompatibility. Overall, this study highlights the potential of AAO membranes to obtain well-defined tailored morphologies at nanoscale level and its importance to develop novel soft functional surfaces to be used in the biomedical field.
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Affiliation(s)
- Erlantz Lizundia
- Macromolecular Chemistry Research Group, Dept. of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa 48940, Spain.
| | - Míriam Sáenz-Pérez
- Macromolecular Chemistry Research Group, Dept. of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa 48940, Spain; The Footwear Technology Center of La Rioja, Calle Raposal 65, Arnedo 26580, Spain
| | - David Patrocinio
- Macromolecular Chemistry Research Group, Dept. of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa 48940, Spain
| | | | | | - José Luis Vilas
- Macromolecular Chemistry Research Group, Dept. of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa 48940, Spain
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14
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Microwave-assisted one pot synthesis, characterization, biological evaluation and molecular docking studies of steroidal thiazoles. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 166:104-115. [DOI: 10.1016/j.jphotobiol.2016.11.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2016] [Accepted: 11/11/2016] [Indexed: 11/20/2022]
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15
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Nasir Z, Ali A, Shakir M, Wahab R, Shamsuzzaman S, Lutfullah L. Silica-supported NiO nanocomposites prepared via a sol–gel technique and their excellent catalytic performance for one-pot multicomponent synthesis of benzodiazepine derivatives under microwave irradiation. NEW J CHEM 2017. [DOI: 10.1039/c6nj04013f] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Heterogeneous and versatile NiO–SiO2 NCs were synthesized by a sol–gel technique and used as a catalyst for the one-pot multicomponent synthesis of benzodiazepines.
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Affiliation(s)
- Zeba Nasir
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202 002
- India
| | - Abad Ali
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202 002
- India
| | - Mohammad Shakir
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202 002
- India
| | - Rizwan Wahab
- Department of Zoology
- College of Science
- King Saud University
- Riyadh 11451
- Saudi Arabia
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16
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Jia M, Zhao R, Xu B, Yan W, Chu F, Gu H, Xie T, Xiang H, Ren J, Chen D, Wang P, Lei H. Synthesis and biological activity evaluation of novel peroxo-bridged derivatives as potential anti-hepatitis B virus agents. MEDCHEMCOMM 2017; 8:148-151. [PMID: 30108700 DOI: 10.1039/c6md00344c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 10/08/2016] [Indexed: 01/09/2023]
Abstract
Previous studies have demonstrated that natural steroid compounds containing a peroxide bridge exhibited potential anti-hepatitis B virus activity. To continue our research, a simple and regioselective methodology, using Eosin Y as a clean photosensitized oxidation catalyst, was developed for the synthesis of a peroxide bridge in steroids. The method that using Eosin Y as the catalyst was exposed to visible light and furbished in high yields, did not involve tedious work-up or purification, and avoided using environmentally hazardous solvents. It can be regarded as a green protocol. Moreover, a series of cholesterol and β-sitosterol derivatives containing a peroxide bridge were synthesized using this method and screened for their anti-HBV activity. Among the compounds synthesized in this research, 5α,8α-cyclicobioxygen-6-vinyl-3-oxo-cholesterone (1f, 3.13 μg ml-1) had the most potent activity with inhibition rates of 77.45% ± 6.01% and 58.73% ± 8.64% on the secretion of HBsAg and HBeAg antigens, respectively, after 8 days. Further acute toxicity test showed that the LD50 value of compound 1f was 362.46 mg kg-1 after an intraperitoneal injection in mice. Moreover, structure-activity relationships of cholesterol and β-sitosterol derivatives were briefly discussed.
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Affiliation(s)
- Menglu Jia
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
| | - Rui Zhao
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
| | - Bing Xu
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
| | - Wenqiang Yan
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
| | - Fuhao Chu
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
| | - Hongshun Gu
- Department of Pharmacology , Xuanwu Hospital of Capital Medical University , Key Laboratory for Neurodegenerative Diseases of Ministry of Education , Beijing 100053 , China
| | - Tianxin Xie
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
| | - Hongjun Xiang
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
| | - Jian Ren
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
| | - Dagang Chen
- Beijing lam ze biological technology co, LTD , 102500 , China
| | - Penglong Wang
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
| | - Haimin Lei
- School of Chinese Pharmacy , Beijing University of Chinese Medicine , Beijing 100102 , China . ;
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17
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Fu Z, Wu X, Chi YR. Rapid access to bicyclic δ-lactones via carbene-catalyzed activation and cascade reaction of unsaturated carboxylic esters. Org Chem Front 2016. [DOI: 10.1039/c5qo00348b] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The carbene-catalyzed activation of α,β-unsaturated ester initiates a well-controlled cascade process for access to iridoid-type multi-cyclic lactones with high stereo-selectivities.
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Affiliation(s)
- Zhenqian Fu
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
- Singapore
| | - Xingxing Wu
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
- Singapore
| | - Yonggui Robin Chi
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
- Singapore
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